package com.atguigu.gulimall.product.service.impl;

import com.alibaba.fastjson.TypeReference;
import com.atguigu.common.constant.ProductConstant;
import com.atguigu.common.to.SkuHasStockTo;
import com.atguigu.common.to.SkuReductionTo;
import com.atguigu.common.to.SpuBoundsTo;
import com.atguigu.common.to.es.SkuEsModel;
import com.atguigu.common.utils.R;
import com.atguigu.gulimall.product.entity.*;
import com.atguigu.gulimall.product.feign.CouponFeignService;
import com.atguigu.gulimall.product.feign.SearchFeignService;
import com.atguigu.gulimall.product.feign.WareFeignService;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.*;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.stream.Collector;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SpuInfoDao;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("spuInfoService")
public class SpuInfoServiceImpl extends ServiceImpl<SpuInfoDao, SpuInfoEntity> implements SpuInfoService {

    @Autowired
    private SpuImagesService imagesService;

    @Autowired
    private AttrService attrService;

    @Autowired
    private ProductAttrValueService productAttrValueService;

    @Autowired
    private SkuInfoService skuInfoService;

    @Autowired
    private SkuImagesService skuImagesService;

    @Autowired
    private SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    private CouponFeignService couponFeignService;//注入远程调用

    @Autowired
    private SpuInfoDescService spuInfoDescService;

    @Autowired
    private BrandService brandService;

    @Autowired
    private CategoryService categoryService;

    @Autowired
    private SearchFeignService searchFeignService;

    @Autowired
    private WareFeignService wareFeignService;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),
                new QueryWrapper<SpuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    @Transactional
    public void spuInfoSave(SpuSaveVo spuSaveVo) {
        //1、 保存spu基本信息pms_sku_info
        SpuInfoEntity spuInfoEntity = new SpuInfoEntity();
        BeanUtils.copyProperties(spuSaveVo,spuInfoEntity);
        spuInfoEntity.setCreateTime(new Date());
        spuInfoEntity.setUpdateTime(new Date());
        this.saveBaseSpuInfo(spuInfoEntity);
        //2、保存spu商品描述图片pms_spu_info_desc
        List<String> decript = spuSaveVo.getDecript();
        SpuInfoDescEntity spuInfoDescEntity = new SpuInfoDescEntity();
        spuInfoDescEntity.setSpuId(spuInfoEntity.getId());
        spuInfoDescEntity.setDecript(String.join(",",decript));//数组逗号隔开
        spuInfoDescService.save(spuInfoDescEntity);
        //3、保存spu的图片集  pms_spu_images
        List<String> images = spuSaveVo.getImages();
        imagesService.saveImages(spuInfoEntity.getId(),images);
        //4、保存spu的规格参数 pms_product_attr_value
        List<BaseAttrs> baseAttrs = spuSaveVo.getBaseAttrs();
        List<ProductAttrValueEntity> collect = baseAttrs.stream().map(attr -> {
            ProductAttrValueEntity productAttrValueEntity = new ProductAttrValueEntity();
            productAttrValueEntity.setAttrId(attr.getAttrId());
            AttrEntity id = attrService.getById(attr.getAttrId());
            productAttrValueEntity.setAttrName(id.getAttrName());
            productAttrValueEntity.setAttrValue(attr.getAttrValues());
            productAttrValueEntity.setQuickShow(attr.getShowDesc());
            productAttrValueEntity.setSpuId(spuInfoEntity.getId());
            return productAttrValueEntity;
        }).collect(Collectors.toList());
        productAttrValueService.saveProductAttr(collect);
        //4.1.1保存gulimall-sms->spu的积分信息
        Bounds bounds = spuSaveVo.getBounds();
        SpuBoundsTo spuBoundsTo = new SpuBoundsTo();
        BeanUtils.copyProperties(bounds,spuBoundsTo);
        spuBoundsTo.setSpuId(spuInfoEntity.getId());
        R r = couponFeignService.saveSpuBounds(spuBoundsTo);
        if (r.getCode() != 0) {
            log.error("远程保存sku优惠信息失败");
        }
        //5、保存当前spu对应的所有sku信息
        List<Skus> skus = spuSaveVo.getSkus();
        if(skus!=null && skus.size()>0){
            for (Skus sku : skus) {
                List<Images> skuImages = sku.getImages();
                String skuDefaultImg="";
                for (Images skuImage : skuImages) {
                    if(skuImage.getDefaultImg()==1){
                        skuDefaultImg=skuImage.getImgUrl();
                    }
                }
                SkuInfoEntity skuInfoEntity = new SkuInfoEntity();
                BeanUtils.copyProperties(sku,skuInfoEntity);
                skuInfoEntity.setSpuId(spuInfoEntity.getId());
                skuInfoEntity.setCatalogId(spuInfoEntity.getCatalogId());
                skuInfoEntity.setBrandId(spuInfoEntity.getBrandId());
                skuInfoEntity.setSkuDefaultImg(skuDefaultImg);
                skuInfoEntity.setSaleCount(0L);
                // 5.1 sku的基本信息 pms_sku_info
                skuInfoService.saveSkuInfo(skuInfoEntity);
                Long skuId = skuInfoEntity.getSkuId();

                List<SkuImagesEntity> imagesEntities = sku.getImages().stream().map((img) -> {
                    SkuImagesEntity skuImagesEntity = new SkuImagesEntity();
                    skuImagesEntity.setSkuId(skuId);
                    skuImagesEntity.setImgUrl(img.getImgUrl());
                    skuImagesEntity.setDefaultImg(img.getDefaultImg());
                    return skuImagesEntity;
                }).filter((entity) -> {
                    // 返回true就是需要。false就是剔除
                    return !StringUtils.isEmpty(entity.getImgUrl());
                }).collect(Collectors.toList());
                // 5.2 sku的图片信息 pms_sku_images\
                skuImagesService.saveBatch(imagesEntities);
                // TODO 没有图片，路径的无需保存
                List<Attr> attr = sku.getAttr();
                List<SkuSaleAttrValueEntity> skuSaleAttrValueEntities = attr.stream().map((a) -> {
                    SkuSaleAttrValueEntity attrValueEntity = new SkuSaleAttrValueEntity();
                    BeanUtils.copyProperties(a, attrValueEntity);
                    attrValueEntity.setSkuId(skuId);

                    return attrValueEntity;
                }).collect(Collectors.toList());
                // 5.3 sku的销售属性信息 pms_sku_sale_attr_value
                skuSaleAttrValueService.saveBatch(skuSaleAttrValueEntities);
                // 5.4 sku的优惠、满减等信息：gulimall_sms->sms_sku_ladder\sms_sku_full_reduction\sms_member_price
                SkuReductionTo skuReductionTo = new SkuReductionTo();
                BeanUtils.copyProperties(sku,skuReductionTo);
                skuReductionTo.setSkuId(skuId);
                if (skuReductionTo.getFullCount() > 0 || skuReductionTo.getFullPrice().compareTo(new BigDecimal("0")) == 1) {
                    R r1 = couponFeignService.saveSkuReduction(skuReductionTo);
                    if (r1.getCode() != 0) {
                        log.error("远程保存sku优惠信息失败");
                    }
                }

            }
        }
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
        QueryWrapper<SpuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)) {
            wrapper.and((w)->{
                w.eq("id", key).or().like("spu_name", key);
            });
        }
        String status = (String) params.get("status");
        if (!StringUtils.isEmpty(status)) {
            wrapper.eq("publish_status", status);
        }
        String brandId = (String) params.get("brandId");
        if (!StringUtils.isEmpty(brandId) && !"0".equalsIgnoreCase(brandId)) {
            wrapper.eq("brand_id", brandId);
        }
        String catelogId = (String) params.get("catelogId");
        if (!StringUtils.isEmpty(catelogId)  && !"0".equalsIgnoreCase(catelogId)) {
            wrapper.eq("catalog_id", catelogId);
        }
        IPage<SpuInfoEntity> page = this.page(
                new Query<SpuInfoEntity>().getPage(params),wrapper
        );

        return new PageUtils(page);
    }


    /**
     * 商品上架
     *
     * @param spuId
     */
    @Override
    public void spuInfoUp(Long spuId) {

        List<SkuInfoEntity> skuInfoBySpuId = skuInfoService.getSkuInfoBySpuId(spuId);
        List<ProductAttrValueEntity> productAttrValueEntities = productAttrValueService.baseAttrlistforspu(spuId);
        //查询商品可以被检索的属性
        List<Long> attrIds = productAttrValueEntities.stream().map(productAttrValueEntity -> {
            return productAttrValueEntity.getAttrId();
        }).collect(Collectors.toList());
        List<Long> attrSearchId = attrService.queryAttrById(attrIds);
        System.out.println(attrSearchId);
        List<SkuEsModel.Attrs> SkuEsattrs = productAttrValueEntities.stream().map(productAttrValueEntity -> {
            SkuEsModel.Attrs attrs = new SkuEsModel.Attrs();
            BeanUtils.copyProperties(productAttrValueEntity, attrs);
            return attrs;
        }).filter(item->{
            return attrSearchId!=null&&attrSearchId.contains(item.getAttrId());
        }).collect(Collectors.toList());
            // TODO 1 发送远程调用，库存系统查询是否有库存
        Map<Long,Boolean> hasStockMap = null;
        try {
            R skuHasStock = wareFeignService.getSkuHasStock(attrSearchId);
            if(skuHasStock!=null && !skuHasStock.isEmpty()){
                List<SkuHasStockTo> data = skuHasStock.getData(new TypeReference<List<SkuHasStockTo>>(){});
                if(data!=null){
                    hasStockMap = data.stream().collect(Collectors.toMap(item->item.getSkuId(),item->item.getHasStock()));
                }
            }
        } catch (Exception e) {
            log.error("库存服务查询异常原因: {}",e);
        }
        Map<Long, Boolean> finalHasStockMap = hasStockMap;//steam要求进入是final的
        List<SkuEsModel> skuEs = skuInfoBySpuId.stream().map(skuInfoEntity -> {
            SkuEsModel skuEsModel = new SkuEsModel();
            BeanUtils.copyProperties(skuInfoEntity, skuEsModel);
            skuEsModel.setSkuPrice(skuInfoEntity.getPrice());
            skuEsModel.setSkuImg(skuInfoEntity.getSkuDefaultImg());
            // TODO 热度评分
            skuEsModel.setHotScore(0L);
            // 是否有库存
            if(finalHasStockMap ==null){
                skuEsModel.setHasStock(true);
            }else{
                skuEsModel.setHasStock(finalHasStockMap.get(skuInfoEntity.getSkuId()));
            }
            // 3 查询品牌和查询分类的名字信息
            BrandEntity brand = brandService.getById(skuEsModel.getBrandId());
            skuEsModel.setBrandName(brand.getName());
            skuEsModel.setBrandImg(brand.getLogo());
            CategoryEntity category = categoryService.getById(skuEsModel.getCatalogId());
            skuEsModel.setCatalogName(category!=null?category.getName():"");
            skuEsModel.setAttrs(SkuEsattrs);
            return skuEsModel;
        }).collect(Collectors.toList());
        // TODO 发送es
        R r = searchFeignService.productStatusUp(skuEs);
        if (r.getCode() == 0) {
            //  远程调用成功
            // TODO 6 修改当前的spu的状态
            baseMapper.updateSpuState(spuId, ProductConstant.StatusEnum.SPU_UP.getCode());
        } else {
            // 远程调用失败
            // 重复调用？接口幂等性

        }

    }

    /**
     * 通过skuid获取订单信息
     *
     * @param skuId
     * @return
     */
    @Override
    public SpuInfoEntity getSpuInfoBySkuId(Long skuId) {
        SpuInfoEntity spuInfoEntity = null;
        SkuInfoEntity skuInfo = skuInfoService.getById(skuId);
        if(skuInfo!=null){
            Long SpuId = skuInfo.getSpuId();
            spuInfoEntity = this.getById(SpuId);
        }

        return spuInfoEntity;
    }

    /**
     * 新增基本信息
     *
     *
     * @param spuInfoEntity
     */
    private void saveBaseSpuInfo(SpuInfoEntity spuInfoEntity) {
        this.save(spuInfoEntity);
    }

}